On Sunday 23 March 2003 20:22, Till Riedel wrote:
> I think no one should simply use the sse2 stuff at the moment,
> because you will notice problems too late. My
> mp3s sounded horrible and gv didn't display pdf files correctly.
> if there hadn't been libvorbis though that had a division by zero,
Am So, 2003-03-23 um 18.56 schrieb Bruce Cran:
> On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote:
> >
> > Just out of curiousity, have you tried using -mfpmath=sse? I remember someone
> > on this list claiming that the SSE fpa-code works much better than the i387
> > code whic
better.
I tested it with e_pow.c.
funnily though using the pentiumpro proccessor cost table "fixes" the libm
problem :-).
the point still is though, that enabling other things (or like me changing the cost
table) doesn' fix anything,
because eg if someone changes some stuff not direct
On Sunday 23 March 2003 19:24, Till Riedel wrote:
> On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote:
> > Just out of curiousity, have you tried using -mfpmath=sse? I remember
> > someone on this list claiming that the SSE fpa-code works much better
> > than the i387 code which is
On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote:
Content-Description: signed data
> On Sunday 23 March 2003 18:02, Till Riedel wrote:
> > why not
> > +_CPUCFLAGS = -march=pentium4 -mno-sse2
> >
> > > choose, and in the case of pentium4 producing broken code the
> > > obvious fall
On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote:
>
> Just out of curiousity, have you tried using -mfpmath=sse? I remember someone
> on this list claiming that the SSE fpa-code works much better than the i387
> code which is used by default (even with -march=pentium4).
>
I do
On Sunday 23 March 2003 18:02, Till Riedel wrote:
> why not
> +_CPUCFLAGS = -march=pentium4 -mno-sse2
>
> > choose, and in the case of pentium4 producing broken code the
> > obvious fallback would be pentium3...
>
> above would be in fact the same because only the SSE2 code differs from
> march=pen
On Sun, Mar 23, 2003 at 07:08:08AM -0600, Anti wrote:
> On Sat, 22 Mar 2003 23:41:14 -0800
> David Schultz <[EMAIL PROTECTED]> wrote:
>
> > Thus spake Anti <[EMAIL PROTECTED]>:
> > > On Sat, 22 Mar 2003 10:28:46 -0800
> > > Steve Kargl <[EMAIL PROTECTED]> wrote:
> > >
> > > > Pentium 4 is definit
On Sat, 22 Mar 2003 23:41:14 -0800
David Schultz <[EMAIL PROTECTED]> wrote:
> Thus spake Anti <[EMAIL PROTECTED]>:
> > On Sat, 22 Mar 2003 10:28:46 -0800
> > Steve Kargl <[EMAIL PROTECTED]> wrote:
> >
> > > Pentium 4 is definitely broken on 5.x. Perhaps, we should remove
> > > the footshooting.
Thus spake Anti <[EMAIL PROTECTED]>:
> On Sat, 22 Mar 2003 10:28:46 -0800
> Steve Kargl <[EMAIL PROTECTED]> wrote:
>
> > Pentium 4 is definitely broken on 5.x. Perhaps, we should remove
> > the footshooting.
> >
> > --- bsd.cpu.mk.orig Sat Mar 22 10:23:42 2003
> > +++ bsd.cpu.mk Sat Mar 22
In the last episode (Mar 22), Steve Kargl said:
> On Sat, Mar 22, 2003 at 12:39:51PM -0600, Anti wrote:
> > pentium3 would be better than pentiumpro on a p4 i think...
>
> I know pentium4 produces some strange code and I know my
> system is quite stable with pentiumpro. I've never tested
> what h
On Sat, Mar 22, 2003 at 12:39:51PM -0600, Anti wrote:
> On Sat, 22 Mar 2003 10:28:46 -0800
> Steve Kargl <[EMAIL PROTECTED]> wrote:
>
> > Pentium 4 is definitely broken on 5.x. Perhaps, we should remove
> > the footshooting.
> >
> > --- bsd.cpu.mk.orig Sat Mar 22 10:23:42 2003
> > +++ bsd.cp
On Sat, 22 Mar 2003 10:28:46 -0800
Steve Kargl <[EMAIL PROTECTED]> wrote:
> Pentium 4 is definitely broken on 5.x. Perhaps, we should remove
> the footshooting.
>
> --- bsd.cpu.mk.orig Sat Mar 22 10:23:42 2003
> +++ bsd.cpu.mk Sat Mar 22 10:27:11 2003
> @@ -62,7 +62,9 @@
> . elif ${CPUTYP
On Fri, Mar 21, 2003 at 09:14:43PM -0800, David Schultz wrote:
> Thus spake Till Riedel <[EMAIL PROTECTED]>:
> > I now know the thing that makes it break.
> >
> > cc -O2 -pipe -mcpu=pentiumpro -c /usr/src/lib/msun/src/e_pow.c
> > works fine!
> > cc -O0 -pipe -march=pentium4 -c /usr/src/lib/msun/sr
Thus spake Till Riedel <[EMAIL PROTECTED]>:
> I now know the thing that makes it break.
>
> cc -O2 -pipe -mcpu=pentiumpro -c /usr/src/lib/msun/src/e_pow.c
> works fine!
> cc -O0 -pipe -march=pentium4 -c /usr/src/lib/msun/src/e_pow.c
> ... works
> but...
> cc -O -pipe -march=pentium4 -c /usr/src/li
On Sat, Mar 22, 2003 at 01:54:35AM +0100, Till Riedel wrote:
> cc -O -pipe -march=pentium4 -c /usr/src/lib/msun/src/e_pow.c
OK, I found PR 43299. Why do I never find them in first place.
till
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I now know the thing that makes it break.
cc -O2 -pipe -mcpu=pentiumpro -c /usr/src/lib/msun/src/e_pow.c
works fine!
cc -O0 -pipe -march=pentium4 -c /usr/src/lib/msun/src/e_pow.c
... works
but...
cc -O -pipe -march=pentium4 -c /usr/src/lib/msun/src/e_pow.c
breaks it. Hey its only gcc :-), nothing
On Sat, 22 Mar 2003, Till Riedel wrote:
> > > res=pow((float)base,(float)dim);
> this is actually not a smart thing. it was cut and paste from libvorbis.
> pow is a function for doubles. if you i use powf everything works fine.
This should work OK. The casts to float should have no effect exce
> > res=pow((float)base,(float)dim);
this is actually not a smart thing. it was cut and paste from libvorbis.
pow is a function for doubles. if you i use powf everything works fine.
res=pow((double)base,(double)dim) however still gives 1
> the output of 'print/x {int}&res' right after the call to
Thus spake Till Riedel <[EMAIL PROTECTED]>:
> [EMAIL PROTECTED] $ cat test.c
> #include "math.h"
>
> int main()
> {
> int base=8;
> int dim=2;
> float res;
> res=pow((float)base,(float)dim);
> printf("%f\n",res);
> return 0;
> }
> [EMAIL PROTECTED] $ gcc -lm test.c
> [EMAIL PROTECTED]
On Tue, Mar 18, 2003 at 08:37:50PM +0300, Sergey A. Osokin wrote:
> On Tue, Mar 18, 2003 at 06:30:51PM +0100, Till Riedel wrote:
> > Hi,
> > since installed a new world this weekend strange things happen to me:
> >
> > [EMAIL PROTECTED] $ cat test.c
> > #include "math.h"
> >
> > int main()
> > {
On Tue, Mar 18, 2003 at 06:30:51PM +0100, Till Riedel wrote:
> Hi,
> since installed a new world this weekend strange things happen to me:
>
> [EMAIL PROTECTED] $ cat test.c
> #include "math.h"
>
> int main()
> {
> int base=8;
> int dim=2;
> float res;
> res=pow((float)base,(float)dim);
>
Hi,
since installed a new world this weekend strange things happen to me:
[EMAIL PROTECTED] $ cat test.c
#include "math.h"
int main()
{
int base=8;
int dim=2;
float res;
res=pow((float)base,(float)dim);
printf("%f\n",res);
return 0;
}
[EMAIL PROTECTED] $ gcc -lm test.c
[EMAIL PROTECTE
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